When I do my upgrade, I will make it in to a mac pod cast, some time in
the next few weeks. Any time I install a new operating system, I
reformat the hard drive first, I never install as an upgrade, should be
a long but enjoyable pod cast to do.
Original message:
Hello Devin,
You ask an excellent question.
I was afraid that I would cause some confusion in my initial post.
Therefore, I will attempt to be more specific. My supposition that
using VoiceOver may cause the OS to not complete the installation
process only refers to the final, and I do mean the final screen that
appears on the display, the one that says something like, "completing
installation".
There is no problem using VoiceOver during any of the previous
installation screens.
The question still remains, then, how can one know when the
installation is truly complete.
At this point, I recommend that one simply use the VoiceOver+either
left or right arrow keys in order to obtain the status of the
completion process. That is to say, do not interact with anything. If
you receive a bonk sound, just leave it alone. When the installation
is truly complete, you will be returned to the screen from which you
launched the installation. In many cases, this will be the App Store.
Of course, common sense dictates that if more than 20 to 30 minutes
pass after you hear VoiceOver say something like "completing
installation", then you will have to attempt to get more information
via VoiceOver.
I want to reiterate that I am only guessing at why some encounter more
VoiceOver problems than others. While I have experienced a kind of
pattern, which forms the basis of my hypothesis, in no way do I hold
that I am correct. My experience could be nothing more than random
chance or simply be the result of some other collateral factor of which
I am not aware.
Mark
-----Original Message-----
From: macvisionaries@googlegroups.com
[mailto:macvisionaries@googlegroups.com] On Behalf Of Devin Prater
Sent: Wednesday, November 11, 2015 8:53 PM
To: macvisionaries@googlegroups.com
Subject: Re: Something To Consider When Updating Your Mac
If this is so, then how would we then know when the installation is
100% complete?
Sent from my iPhone
On Nov 11, 2015, at 10:00 PM, M. Taylor <mk...@ucla.edu> wrote:
Hello Everyone,
You know, I almost hesitate to post the following supposition for fear
of unleashing a firestorm of debate but after my recent experiences
updating several Macs from Yosemite to El Capitan, I am compelled to proceed.
For the life of me, I cannot fathom why some who upgrade from Yosemite
to El Capitan do so with virtually no negative results while others,
experience countless and, according to them, almost catastrophic
consequences, from an accessibility perspective.
I have long suspected the following supposition but have recently
begun to test my hypothesis, said hypothesis being the following:
During the upgrade process, using VoiceOver too soon, can interrupt
the installation and that it is this interruption that leads to the
increase in the number of VoiceOver accessibility problems.
Scenario:
A totally blind person begins the upgrade process or even performs a
fresh install of El Capitan. During this process, several screens are
displayed but near the very end of the process, VoiceOver can be used
even though the installation is not yet complete. Visually, the
screen may display something like Completing Update. This screen is
not comfortably accessible and, as a result, the totally blind person
may not realize that there is still a progress bar that has not yet
reached 100%. As a result of this lack of knowledge, the user begins
performing VoiceOver actions including switching screen focus, etc.
When this happens, I believe that the extremely final installation
tasks are not properly completed.
Whenever I install a copy of the OS, I am very careful to allow the
installation process to complete and, sometimes, that final screen can
remain on the display for what appears to be a remarkably long time,
relative to the entire installation process.
During my testing, in each instance in which I did not wait for the
screen to disappear or I began using VoiceOver to interact with the OS
before the screen disappeared, I noticed a significant degradation in
the performance of VoiceOver.
Now again, let me emphasize that this is just a guess on my part and
in no way do I hold that it is a correct one.
Be that as it may, I suggest that this is something to consider when
updating your Mac.
Mark
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